<template>
  <div class="container">
    <header>
      <div class="left">
        <span @click="back">
          <i></i>
        </span>
        <h6>离线中心</h6>
        <span>
          <i></i>
        </span>
      </div>
    </header>

    <!-- 要循环的 -->
    <!-- 视频列表 -->
    <div class="viedolists">
      <!-- <div class="title">视频列表</div> -->

      <!-- 视频 -->
      <div class="datalists" v-show="!downshow">
        <!-- 要循环的 -->
        <div class="contentlists" v-for="(item, index) in down" :key="index">
          <div class="name" @click="govideo(item.id)">
            <h6>
              {{ item.title }}
            </h6>
            <h6>
              {{ item.duration }}
            </h6>
          </div>
          <div class="down" @click="del(item.id)">
            <i></i>
          </div>
        </div>

      </div>
      <!-- 离线视频没有 -->
        <div class="emptybox" v-if="downshow">
          <img src="../assets/img/ic_empty_content.9efeb7f.png" alt="" />

          <h6>你还没有下载视频~</h6>
        </div>
    </div>
  </div>
</template>
<script>
import router from "@/router";
import { reactive, ref, toRefs } from "@vue/reactivity";
export default {
  setup() {
    let arry = reactive({
      down: [],
    });

    let downshow = ref(true)
    let back = () => {
      router.push({
        path: "/my",
      });
    };

    arry.down = JSON.parse(window.localStorage.getItem("readydown"));
    // console.log(arry.down);
    if(!arry.down||arry.down.length==0){
        downshow.value=true
    }else{
        downshow.value=false
    }

    let del = (id) => {
      // console.log(id);
      let Index = arry.down.findIndex((item) => item.id == id);
      // console.log(Index);
      if (Index != -1) {
        arry.down.splice(Index, 1);

        window.localStorage.setItem("readydown", JSON.stringify(arry.down));
      }

      if(!arry.down||arry.down.length==0){
        downshow.value=true
        }else{
            downshow.value=false
        }
    };

    let govideo = (id) => {
      let index = arry.down.findIndex((item) => {
        return item.id == id;
      });
      // console.log(index);
      //点击跳转后传index值
      router.push({
        path: "/television",
        query: {
          id: index,
        },
      });
    };

    return {
      back,
      ...toRefs(arry),
      del,
      govideo,
      downshow
    };
  },
};
</script>
<style lang="scss" scoped>
@import "../assets/css/base.css";
header {
  display: flex;
  align-items: center;
  position: sticky;
  top: 0px;
  background-color: #fff;
  z-index: 100;
  border-bottom: 1px solid #f1f1f1;
}
header .left {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  align-items: center;
  h6 {
    // margin-left: 50px;
    font-size: 15px;
    width: 200px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: center;
  }
}
header .left span:nth-child(1) i {
  display: block;
  background-image: url(../assets/img/下载.png);
  width: 48px;
  height: 46px;
  background-size: 18px 18px;
  background-repeat: no-repeat;
  background-position: 20px 13px;
}
header .left span:nth-child(3) i {
  display: block;
  // background-image: url(../assets/img/下载.png);
  width: 48px;
  height: 46px;
  // background-size: 18px 18px;
  // background-repeat: no-repeat;
  // background-position: 20px 13px;
}
.viedolists {
  display: flex;
  flex-direction: column;
  // margin-top: 20px;

  .title {
    padding: 0px 15px;
    background-color: #fff;
    border-top-left-radius: 15px;
    border-top-right-radius: 15px;
    height: 42px;
    line-height: 42px;
    border-bottom: 1px solid #dedede;
  }

  .contentlists::before {
    display: block;
    content: "";
    width: 15px;
    height: 15px;
    background-image: url(../assets/img/icon-play.jpg);
    background-size: 15px 15px;
    position: absolute;
    left: 15px;
    border-radius: 3px;
  }

  .datalists {
    background-color: #fff;

    .contentlists {
      padding-right: 15px;
      margin-left: 45px;
      display: flex;
      justify-content: space-between;
      margin-top: 15px;
      border-bottom: 1px solid #ebebeb;
      align-items: center;

      .name {
        display: flex;
        flex-direction: column;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        h6:nth-child(1) {
          font-size: 14px;
          color: #3c3c3c;
          height: 25px;
          line-height: 25px;
          padding-top: 5px;
          white-space: nowrap;
          overflow: hidden;
          text-overflow: ellipsis;
        }

        h6:nth-child(2) {
          font-size: 12px;
          color: #8f8e96;
          height: 21px;
          line-height: 21px;
          margin-bottom: 10px;
        }
      }

      .down {
        i {
          display: flex;
          width: 12px;
          height: 12px;
          background-image: url(../assets/img/close.6dfeaa4.png);
          background-size: 12px 12px;
        }
      }
    }
  }
}
 .emptybox {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 60px;

    img {
      width: 150px;
      height: 150px;
    }

    h6 {
      color: #7d7d7d;
      font-weight: normal;
    }
  }
</style>